All Products
Search

This Product

    Data Management:Download data backups and log backups

    Document Center

    Data Management:Download data backups and log backups

    Last Updated:Mar 30, 2026

    Download backup sets generated by Data Disaster Recovery to archive data locally or restore it to an on-premises device. Data backup sets download in CSV format; log backup sets download in the native format. The download package is a <download-task-ID>.tar.gz archive.

    Billing

    Downloading backup sets does not incur network traffic fees.

    Important

    Using a third-party download tool may generate additional download traffic and result in extra charges.

    Usage notes

    • The download URL is valid for two days. Download the backup set within two days of getting the URL, or the URL expires.

    • Download the backup set before its retention period ends. If the backup set expires during the download, the task fails.

    Download a backup set

    Prerequisites

    Before you begin, ensure that you have:

    • Access to the DMS console V5.0

    • A backup set available under Data Disaster Recovery (DBS)

    Steps

    1. Log on to the DMS console V5.0.

    2. In the top navigation bar, choose Security and Specifications (DBS) > Data Disaster Recovery (DBS) > Disaster Recovery Data Source.

      If the DMS console is in simple mode, move the pointer over the 2023-01-28_15-57-17.png icon in the upper-left corner and choose All Features > Security and Specifications (DBS) > Data Disaster Recovery (DBS) > Disaster Recovery Data Source.

    3. In the top navigation bar, select a region, then click the data source ID to open the Data Source Details page.

    4. Find the backup set and click Download in the Actions column. The path to the backup set depends on your database type:

      Database type Path
      Alibaba Cloud databases Backup Data page > Logical Backup tab > Download in the Actions column
      Self-managed databases on Elastic Compute Service (ECS) instances, on-premises databases, and third-party cloud databases (automatically backed up) Data Backup tab > Download in the Actions column

      Data Disaster Recovery packages, compresses, and converts the backup set automatically. The page navigates to the Download Task tab on the Task Management page.

    5. Wait for the download task Status to change to Complete, then click Download in the Actions column.

    6. In the dialog that appears, click Download. Alternatively, copy the internal or public URL to download the backup set using your preferred method.

      image

    Decompress the backup package

    The downloaded file is a <download-task-ID>.tar.gz package. Follow these steps to decompress it.

    1. Extract the tar.gz archive:

      gzip -d <download-task-ID>.tar.gz

      This produces a <download-task-ID>.tar file.

    2. Check the file type to determine the correct extraction command:

      file <download-task-ID>.tar

      Run the extraction command that matches the output:

      • If the output is POSIX tar archive:

        tar xvf <download-task-ID>.tar

      • If the output is Zip archive data, at least v2.0 to extract:

        unzip <download-task-ID>.tar

      Both commands produce the <download-task-ID> file.

    3. (Optional) If the extracted output contains an XB file, download the xbunpack tool and run the appropriate command for your operating system:

      • Windows: Download xbunpack.exe, then run:

        xbunpack.exe -file=<download-task-ID>.xb -dir=<destination-directory>

      • Linux: Download xbunpack, then run either command:

        xbunpack -file=<download-task-ID>.xb -dir=<destination-directory>
        cat <download-task-ID>.xb | ./xbunpack -dir=<destination-directory>